1. School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
2. Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
3. College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
4. State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
5. Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China